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Old 08-31-2009   #1
Forced Fed
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Join Date: Aug 2009
Location: Suburbs
Drives: FS-T
Posts: 346
Re: 255 walbro Fuel Pump Install

It sounds like fuel cut to me, but there are easy ways to start eliminating things. I would first start with putting the boost back to stock, especially if you don't have a way of compensating for extra fuel / boost. Do you have a chip, S-AFC, or larger injectors by chance?

If you are still experiencing this problem after going back to stock boost, it wouldn't hurt to through in some new BPR7ES plugs since they are so damn cheap and gap them at .24. If you drive during the winter BPR6ES would work just fine as well. I personally used to change my plugs every 5k miles or 3 months, whatever came first.

Also grab your self some new plug wires while you are at it, best options would be MSD 8.5mm or Taylor 10.2mm wires. Put some petroleum jelly in the boots of the plug wires for optimum performance, this can be found at any local parts store for cheap in little packets, you only need one.

Last edited by Forced Fed; 08-31-2009 at 10:14 PM..
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Old 09-01-2009   #2
adidasdudegst
 
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Join Date: Jun 2009
Location: Plymouth
Drives: 03 TB EVO
Posts: 164
Re: 255 walbro Fuel Pump Install

Yeah, when the boost is put lower to around 11-14psi, there is no problems, so that's why I was thinking that it was hitting fuel cut, and getting a new fuel pump would help solve the problem.

I just changed the plugs, and am getting new wires soon. However I don't think that's the issue. I could be wrong but.. it honestly seems like fuel cut...

So I am trying to figure out, if I purchase a Walbro 255 fuel pump, would I be able to install it without getting a fuel pressure regulator?

Thanks
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